NPDC New Plymouth

The monitoring at NPDC New Plymouth was carried out to provide information on the regional level of inhalable particulates PM10 at a central New Plymouth area.

The monitoring site was located at the top of NPDC building, a three-storey building in central New Plymouth.The sampler was located in the path of air flows either about to impinge on or having already passed over the residential areas of the southern part of the city. PM10 was monitored on a one day in three basis using a HiVol sampler and 200 mm x 250 mm filters prepared and supplied by Watercare Services. Data was collected from May 2003 to October 2003.

Scientific Indicators

Scientific data for this site

This dashboard shows information on the data collected by the regional councils for air quality scientific indicators:

PM10

Hourly average

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Daily average

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Monthly average

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Annual average

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What do the dashboard colours mean for PM10?

The dashboard colours show how PM10 levels sit in relation to the guideline – from green (less than 10%) to red (more than 100% of the guideline). The guideline (100%) value for the daily average PM10 is 50 µg/m3 and 20 µg/m3 for the annual average. There are no guidelines for hourly or monthly data (charcoal colour).

Colour

Percent of guidelines

Less than 10% of guideline

10-33% of guideline

33-66% of guideline

66-100% of guideline

Greater than 100% of guideline

No guideline

PM10 information

Hourly

Daily

Monthly

Annual

Exceedances

Show wind speed

Show temperature

Months:

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Showing:

Guideline

Concentration (µg/m3)

Wind speed (km/h)

Air temperature (℃)

Show each month in selected timeframe

Show average of months in selected timeframe

What is this graph showing me?

This graph shows how levels of PM10 change on an hourly, daily, monthly or annual basis for the selected time period. The levels depend on local sources of emissions and what the weather is doing. Emissions from various sources change, depending on whether it’s a weekday or the weekend or at different times of the year (e.g. emissions from home heating goes up in the cold winter months). Still conditions often lead to high concentrations, as there is no wind to blow away the pollutants in the air. The PM10 concentrations are shown against the guidelines for air quality (for daily and annual averages), and where concentrations exceed the guideline (red line) this can be a cause for concern, especially if this occurs on a frequent basis.

Exceedance data (when available) shows the number of days per year that the concentrations went above 100% of the air quality guideline.

For information about allowable exceedances and targets, and the limitations of data shown, see the Factsheet on monitoring air quality in New Zealand.